USER MANUAL
Contents
1. Energy Expenditure E The total work done over the course of the trip or interval is shown in kilojoules This value is a measure of the total energy expended over the course of your ride This is roughly equivalent to dietary calories expanded Odometer O Total accumulated distance travelled since the last system reset is ose in whole miles or kilome ers Heart Rate i Current heart rate is shown up to 255 beats per minute You must wear the heart rate chest strap to enable heart rate measurement and the hub transmission icon must be on Note Powertap uses a non coded chest SIstrao For heart rate monitor function only hold select for 2 seconds while displaying your heart rate Average Heart Rate AV is value is a running average of the heart rate in BPM If there is no heart rate information this will display as 0 Both the heart and AV icons are shown while in this mode 19 POWERTAP PRO INTERVAL MODE Pro Interval Mode The Powertap Pro Interval mode functions differently than the previous Powertap computers It works as a lap marker and is essentially always on To begin the first interval or advance the interval simply press both buttons down simultaneously from any location or mode in the display INT and the new interval will briefly appear before disaapearing again to the background To view interval specific information duration distance averages etc simply hol2. First the display on the Powertap CPU has a 3 sample running average This 3 sample average is used for displaying averages and maximums on the Powertap computer display This reduces the jumpiness of the numbers and makes it easier to use while riding The data saved for download is raw exactly as it is sent from the hub In the CPU set up mode press MODE and SELECT buttons simultaneously until you see SETUP you can select 1 or 2 sample recording If you select 1 the data is sent to the CPU from the hub at 1 second intervals The 1 second mode will save every data point sent from the hub If you select 2 the data is sent to the CPU at 2 second intervals The 2 second mode will in effect save only every other data point sent from the hub Therefore in the 2 second mode Maximums can be missed So between the averaging and the save rate the data download will be different In the 1 second mode the download data is always most accurate 35 TROUBLE SHOOTING The second issue is time differences The data points used for display on the CPU may not coincide perfectly with what is stored to memory There can be up to a 1 sample or 1 second loss at the start and stop of a download file If the CPU is in 2 second mode this max time error 2 seconds at the start and or stop can be as much as 4 seconds off The individual raw data records written to memory are extremely accurate In fact the data has been proven in laboratory testing to be accurat
3. Current Power Instantaneous power output is dis played from O to 1999 watts in 1 watt increments The WATTS label is visible during this mode on the power display Maximum Power This value is the highest recorded data was cleared Both the WATTS label and the MX icon denote maximum power Average Fb This nction displays the calculated average power output measured over gt Av warts the course of your ride The WATTS label and the AV icon are visible when average power is shown 18 ne torque function shows the torque placed on the hub in inch pounds To display torque hold down the select button for two 5 H 10 seconds while on the watts display in trip mode The WATTS label is not visible with torque Press select to return to the power display IMPORTANT How To Zero Torque Occasionally the torque must be zeroed to ensure that the Powertap displays the most accurate power information H the instantaneous power is positive or negative while coasting the torque needs to be zeroed This operation must be done while coasting with no tension in the chain or while stationary with no force being placed on the pedals Also the transmission icon must be illuminated To zero torque hold down the select right button for two seconds to enter torque mode Then hold down select again until 0 is shown Push select once to return to watts The torque value will now read zero Current Speed Y
4. average power output measured over the course of your ride or interval The WATTS label and the AV icon are vis ible when average power is shown 12 3 6 g Torque JThe torque function shows the 3 torque placed on the hub in inch pounds To display torque hold down the select button for two D 6 10 seconds while on the watts display in trip mode The WATTS label is not visible with torque Press select to return to the power display IMPORTANT How To Zero Torque Occasionally the torque must be zeroed to ensure that the Powertap displays the most accurate power information If the instantaneous power is positive or negative while coasting the torque needs to be zeroed This operation must be done while coasting with no tension in the chain or while stationary with no force being placed on the pedals Also the transmission icon must be illuminated To zero torque hold down the select right button for two seconds to enter torque mode Then hold down select again until 0 is shown Push select once to return to watts The torque value will now read zero Current Speed Your current speed is displayed in miles per hour or kilometers per hour up to 99 9 mi hr or km hr in 0 1 mi hr or km hr increments Only MIT or KM is shown with current speed Maximum Speed This function displays the highest recorded value of the speed The maximum speed is shown with MI or KM and the MAT icon on the sp
5. 21 in the User Manual 3 5 hours of ride memory instead of 7 0 hours of data original standard model The Powertap computer has a setting that lets you change the data collection rate When you set up the Powertap computer press MODE and SELECT buttons simultaneously until you see SETUP you can select either 1 or 2 after you have selected the measurement system and wheel circumference If you select 1 the Powertap will record data every second and you ll be able to store a maximum of 3 5 hours of data at that resolution If you select 2 you will record data approximately every other second and you ll be able to store a maximum of 7 hours of data at that resolution You can change these settings before a ride but you ll have to remember where you left it there s no indicator of the current setting on the main displays No display on computer screen Computer is asleep press one of the buttons on the computer to wake up the computer Batteries need replacement replace the computer batteries as shown on pages 33 of the User Manual Computer too cold operating temperature is 30 to 40 degrees Fahrenheit 33 TROUBLE SHOOTING Computer display is on but there is no transmission icon Hub is asleep spin the wheel momentarily to wake up the hub Batteries need replacement replace the hub batteries as shown on pages 33 of the User Manual Computer not seated in mount make sure computer is firmly and correctl
6. advance to next digit Refer to wheel circum ference guide for correct tire circumfer ence A roll out meas urement mm of the rear wheel will give greatest accuracy OO Press select button to select English or Metric units Press mode button to save rw Zoe Se fe 8 d Rowe wae A d 1 d j LA o F Press select button to select starting Odometer reading Press mode button to save d Sege Note Odometer settings are saved during battery changes See wheel circumferences on page23 15 POWERTAP PRO INTRODUCTION Powertap Pro The main difference between the Powertao Pro and Powertap standard is that the Powertao Pro utilizes a different receiver with an additional wire to read cadence and offers the following set up modes Set Up 1 Time and Date recording rate wheel circumference units of measure and odometer settings Set Up 2 Display rates of watts soeed cadence and heart rate Set Up 3 Whether or not Zero s are included in averaging Set Up 4 Customizing the display cadence source sleep data control for autostop The following pages cover installation of the Pro receiver and navigation of the Pro CPU 16 POWERTAP PRO GENERAL OPERATION General Operation of Computer The Powertap Pro has three main displays power display top speed display middle and multi function display bottom There are two main modes of operation in the Powertap trip
7. be used sparingly Do not use harsh degreasers on any of the plastic parts rubber seals or bearings Do not use a power sprayer Care For Electronics The Powertap is water resistant However should moisture enter the hub remove the battery cover and let dry overnight Short term exposure to moisture should not damage the Powertap if it is thoroughly dried Batteries O rings SC Batteries should be replaced when the battery indi cators denote low computer or hub batteries see page 8 To replace computer batteries remove the computer from the mount Remove the battery cover on the back of the computer exchange the battery and replace cover as in figure 11 To replace hub batteries remove the battery cover on the non drive side with the two 2 5mm hex MAINTENANCE amp SPECIFICATIONS bolts Insert new batteries and verify that the hub is working properly by spinning the axle while holding near the receiver before replacing the cover Note The batteries may fall out if you spin it without the cover on The transmission icon should illuminate Replace the cover and make sure the bolts are tight 7 turns max and an even seal is formed around the cover Do not over tighten the cover bolts as this will damage the O rings under the bolt heads See figure 12 Apply a light coating of synthetic grease to the O rings to ease cover installation and extend O ring life Waming Do not remove any of the four bolts underneath the batt
8. degrees of parallel with the hub battery cover before tightening cable ties The head of the cable tie fits flush into a recessed cavity in the receiver Pull the cable ties tight to secure to the frame and clip off any excess cable tie Route the wire along the seat stay and top tube to the handlebar area Wrap around brake housing and or use cable ties to affix the wire to the frame Be careful not to crimp the receiver wire with cable ties Allow a small amount of slack in the receiver wire where it meets the reciver Unneceassary siress at this point can lead to receiver failure h L DH i l Nia i 4 Figure2 Mounting angleof receiver Figure 1 Mounting position of receiver SYSTEM INSTALLATION 5 Heart Rate Monitor Strap Position the heart rate monitor strap on your torso as pictured in figure 6 The strap should rest just beneath the pectoral muscles of the chest Make sure the electrodes on the strap are slightly moist where it con tacts the skin for best results The heart rate strap must be worn to enable the heart rate functionality of the Powertap see figure 5 The chest strap is not coded Figure 3A Mounting of computer mount 3 Attach Computer Mount to Handlebar The computer mounts to the handlebar in a similar fashion Position the foam mounting tape beneath the mount and secure with cable ties to handle bar 3A The head of the cable tie fits flush into a recessed cavity on the mount see figur
9. high quality hub designed to withstand the rigors of training and racing With a little regular maintenance you will enjoy years of trouble free use from your Powertap If not familiar with working on hubs you should take your Powertap to a bike shop with qualified mechanics for service Serviceable and Non Serviceable Parts The power measuring components inside the Powertap hub are highly complex and should only be serviced by a Powertap Service Center The rest of the hub is very serviceable and similar to other popular high quality hubs in design The axle ball bearings cones and freehub body may be removed without further disassembly of the hub or removing the battery cover The sealed axle bearings on the drive and non drive side are replaceable by Powertap ONLY Do not attempt to remove sealed bearings on the drive or non drive side Bearing Adjustment Hubs should be checked occasionally for cone adjustment and bearing play Should an inspection find excessive play in the bearings tighten the cones and locknuts accordingly If gritty or rough bearings are found the hub should be disassem bled cleaned and overhauled Repack or replace any bearings as necessary If a problem exists in the sealed bearings please contact Powertap Re assemble as shown in figure 10 Figure 10 Hub assembly Cleaning To clean the hub and components use soapy water and soft bristled brush If needed mild biodegradable degreasers can
10. in gt a 130mm road frame Do not Complete Powertap wheel force the hub into any frame Doing so may cause failure of the frame hub or both and will void the war ranty Contact your dealer or Powertap to address any special compatibility issues WHEEL BUILDING Wheel Building Contact your local wheel building professional or dealer for assistance in building the Powertap hub if not provided as a complete wheel The flanges are drilled for 14 or 15 gauge spokes Use at least a two cross pattern on both sides of the hub Due to the design of the hub the load path is not the same as with a conventional hub Slotting the hub flanges to accommodate bladed spokes is not recom mended and will void the warranty Reference a spoke length calculator when building a wheel not listed in the provided table Common Spoke Lengths 3 cross pattern Wheel Building Dimensions Measurements Non Drive Spoke hole diameter 2 4mm SYSTEM INSTALLATION 1 Insert Wheel Into Frame Insert the complete built Powertap wheel into the frame Make sure the axle is correctly posi tioned in the dropouts and secure wheel in place with a steel skewer Fig 1 2 Attach Receiver To Seat Stay Locate the bottom of the receiver 7 inches from the Powertap axle and attach the receiver to the seat stay using two cable ties Place foam tape between receiver and frame for a slip free fit If necessary rotate receiver inward to within 5
11. mode and interval mode Mode Button Press the mode button to scroll between the different displays The active display is indicated by small black triangles at the left and right side of the display Hold the mode button down for two sec onds to toggle between trip and interval modes The INT icon will illuminate when you enter interval mode as well as the current interval number Select Button Press the select button to select which function is shown on the current display The current function will remain on the display even when the mode but ton is used to move to another display Menu Both Buttons Hold both buttons for 2 seconds to enter the scroll ing menu There are two options to select by releas ing the buttons clr to clear all data and the main menu to enter setup Power Conservation The computer and hub have power saving features to prolong battery life The computer powers down the display after 4 minutes of inactivity Press one of the buttons to activate the display Similarly the hub powers down after two minutes of inactivity The transmission icon will not be visible when the hub is asleep Spin the wheel momentarily and the icon will illuminate d POWER DISPLAY SPEED INTERVAL DISPLAY Se MULTI DISPLAY MODE LEFT BOTH SELECT RIGHT Changes active Clear data Select function de Enter setup Figure 7 Powertap button and display summary 17 POWERTAP PRO COMPUTER NAVIGATION
12. more expensive option of sending the unit back for repair If you feel the need to warranty your Powertap please return your product through the channel that you purchased it from or contact Graber Products Inc at 1 800 783 7257 FCC Statement of Compliance This device complies with part 15 of the FCC Rules Operation is subject to the following conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including inter ference that may cause undesirable operation Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a normal installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation Graber Products 5253 Verona Road Madison WI 53711 800 783 7257 www cycle ops com
13. to 255 beats per minute You must wear the heart rate chest strap to enable heart rate measurement and the hub transmission icon must be on Note A Powertap uses a non coded chest strap Average Heart Rate AV This value is a running average of the heart rate in BPM If there is no heart rate information this will display as O Both the heart and AV icons are shown while in this mode 13 POWERTAP STANDARD INTERVAL MODE POWERTAP STANDARD COMPUTER SET UP Interval Mode The Powertap Interval mode functions differently than the previous Powertap computers It works as a lap marker and is essentially always on To begin the first interval or advance the interval simply press both buttons down simultaneously from any location or mode in the display INT and the new interval will briefly appear before disaapearing again to the background To view interval specific information duration distance averages etc simply hold down the mode button for two seconds This brings interval mode to the foreground INT and the interval number will constitute a fourth line in the display see picture at right When you wish to relegate the interval information to the back ground again simply depress the mode button for two seconds Interval Memory Mode To access stored interval information selcet INT by pushing mode until INT blinks Then hold select for 2 seconds until M appears next to the interval number in
14. uninstalling or using the native windows uninstall system The Link software will often run correctly after it has been un installed with the CD and then re installed 36 TROUBLE SHOOTING Tips on Serial Ports The normal serial port connector is a trapezoid shape with rounded corners and has nine pins It is about 5 8 wide and 3 8 tall The technical name is a DB 9 connector Serial ports are a very finite resource on the computer It can have many but only two can be used at one time Devices that use serial ports are Digital camera PDA Personal Digital Assistants like Palm Pilot Mouse Modem Check the computer BIOS that the serial ports are turned on and in a normal state The plug and play mode should work for most computer setups Sometimes this does not work and the default manual settings should be used The typical default is COM 3F8 INT4 and COM2 2F8 INT3 Note that Windows NT will not recognize the plug and play settings Testing Original Powertap Hardware and Serial Ports with HyperTerminal HyperTerminal is a serial port terminal emulation software that comes with Windows It will allow you to test the basic communication between your computer and the Powertap link cradle and Powertap CPU It is usually found under start gt programs gt accessories gt communication gt HyperTerminal If you can t find it search on your system start gt find gt files or folders for hyperterm exe If you st
15. 9 59 40 140 RPM 0 99999 kJoules 0 99999 mi or km 0 255 BPM 29 O RING PLACEMENT Large O Ring fits in groove in hub shell When reinstalling battery cap turn screws 7 times max 3 Small O Ring fits in groove around spacer TEST MODE Starts when the t is selected from the setup menu Lights the interval memory mode M icon and small number to left of it Mode scrolls through the different test modes as shown by the number Select generally performs the numbered item unless there is to be other inputs are being tested for Pressing Mode and Select together for longer than 2 seconds returns to standard operation 0 Model and version Displays the model on the middle line and version number on the bottom line 1 LCD test When Select is pressed all the LCD segments are displayed Press Select again to return to the normal screen 2 Receiver test signal Note the receive icon is displayed The middle line display flashes 88 with each blip of data from the receiver whether valid or not 3 Heart rate signal test Note the heart icon is displayed The middle line display flashes 88 with each heart rate blip received 4 Bike computer wheel magnet sense detect Note the MI KM icons are displayed The middle line display flashes 88 with each sensing of the wheel magnet next to the receiver 31 TROUBLESHOOTING 5 Cadence test Note the C icon is displayed The top li
16. POWERTAP PRO USER MANUAL Copyright Copyright 2003 All rights reserved No part of this publication may be copied photographed reproduced translated transmitted electronically or placed on digital media without the prior written consent of Graber Products Trademarks Graber Powertap and the Powertap logo are all registered trademarks of Graber Products All other product brand or trade names used in this manual may be trademarks or registered trademarks of their respective owners Modifications Graber Products reserves the right to make improvements and or updates to the products described herein at any time without notice Graber Products Inc 5253 Verona Road Madison WI USA www cycle ops com 1 800783 7257 15159A 4 03 CONTENTS MUOU CION RE 4 S EE Eege dee r 5 Wheel Building EE 6 S 14 08 S ee E 7 STANDARD SECTION Powertap Standard General Operation 10 Powertap Standard Computer Navigation 11 Powertap Standard Interval Mode 14 Powertap Standard Computer Set Up 14 15 FERO en HON EE 16 Powertap Pro Computer Navigaton rs tnnrrrtrrtnenrne nnr Errrrenne anann nr rrrenene nn 17 Powertap Pro Interval ee EE 20 OW Sia Po OM er EE 21 Maintenance amp SO e EE 28 O ring Replacement sssrin rei Ea E OAE AR EEE RE SEE EEEREN REAR AEAEE EREEREER E E ARARNAR 30 RE We 31 TOUDE POO ee a eee ee a ae ee ee ee ee re eee eee 32 Warranty and Technical SUDON EE 42 INTRODUCTION amp PRECAUTIONS Thank y
17. an be removed from the bike receiver shoe Download Trouble Shooting Download Techniques When the Powertap CPU is placed in the download cradle an end of file marker is created This is necessary for the download process and also does not allow any further data to be recorded To E ER data the CLEAR ALL command must be given This is done by holding down both buttons on the Powertap CPU until the display reads C ALL No new data will Close all other programs and applications to make sure they don t interfere with the download When you slide the Power Tap computer onto the download cradle the Powertap computer display should blank out 39 TROUBLE SHOOTING Unable to Download If you have downloaded before determine if anything has been upgraded or changed on your PC like new software updated software moved plugs new hardware updated drivers Look for any thing that may have changed the operating conditions Check the condition of the Link cable pins plug and the Link cradle contacts Is everything fully seated If you have never downloaded review the information on Serial Ports and Testing Powertap Hardware with HyperTerminal in this guide Does it download but then not import Does the CPU blank out when put in shoe If it does not take off and reseat the CPU on the shoe Was there any problem with installing the Link software If there was do an uninstall from the CD itself and reinstall See the insta
18. and the Powertap display showed some accumulated time and distance Make sure you have a downloadable Powertap cycle computer If the computer reads either Prologue in yellow letters on the right side of the screen or tune on the left side of the screen you do not have a downloading computer The serial number on the Powertap computer should be 13329 or higher There is a way to download the Powertap data without starting up the Link software If you are familiar with MS DOS commands check under the Start menu in Programs click on MS DOS Prompt Go to the directory where you have your Link software installed Once there type ptapdl samp com n out file name csv Please consult the file ptapdl txt Where n is the serial port to which your Powertap is connected and file_name is your choice This command will create a CSV file and download the Powertap memory to the file Check to see if the Powertap computer battery is dead or low Downloading requires highter power and a weak battery could cause problems Another indicator of a weak battery is inaccurate heart rate performance If you still have trouble after reviewing this section please call Customer Service toll free 1 800 783 7257 41 WARRANTY AND TECHNICAL SUPPORT Warranty and Technical Support If you find a problem you cannot solve yourself or with the help of your dealer try one of the support options listed below In most cases problems can be res
19. button to select if zeros are included in Cadence average Press mode button to save This is useful if you are curious what your aver age cadence is when you are pedaling only Torque auto zero function Normally leave at yes This is useful for track bike use where large negative torque may be present Note Hub modification to fixed gear is necessary Press select then mode to reset defaults press mode to save changes or go do it Note These settings DO NOT affect the data that is stored for download 25 POWERTAP PRO COMPUTER SETUP 4 ra d i Dem sn k a d Ki d fae a ht i k Press select to set how many minutes the CPU will stay awake after not receiving a valid speed or heart rate signal The shorter the sleep time the better the battery life 26 a De e T i Du FHS Tae Ks PRO Press select button to select what is displayed in the middle line mi speed c cadence heartrate Also whatever is selected will flash during the ride to indicate what is displayed in the middle screen Note that if heart rate or cadence is selected speed is not displayed at alll This function is useful for intervals when power heart rate and cadence are of most concern l D j ed es JI PRO SEN Hu Ben Es Oo Seed Press select button to select the cadence infor mation source Default hub then pedal Pedal crank only Hub hub on
20. d down the mode button for two seconds This brings interval mode to the foreground INT and the interval number will constitute a fourth line in the display See picture at ss right When you wish to relegate the interval information to the background again simply depress the mode button for two seconds Fa RB Sech d JP ara Pro Interval Memory Mode f f H To access stored interval information selcet INT by pushing mode until INT blinks Then hold select for 2 seconds until M appears next tothe inter e i val number indicating you are now viewing interval information Push select to advance to the interval you wish to view and push mode to select the information you wish to view Ave watts cadence etc To exit Interval Memory Mode hold mode for 2 seconds Note that recovery periods as well ae vw 4 iy work periods are displayed in memory mode a e d i mod Pro Interval Shortcut C Cy i To quickly mark intervals simply push both buttons simultaneously from either trip or interval mode If in trip mode INT will briefly appear indicating d you have marked an interval and which number interval you are on E 20 POWERTAP PRO COMPUTER SETUP 1 Push either button to activate the computer Press select to choose the desired set up and press mode to begin set up Note the version of firmware is displayed in the lower corner shown below E exit retum to ride mode d restore default settin
21. dicating you are now viewing inter val information Push select to advance to the interval you wish to view and push mode to select the information you wish to view Ave watts cadence etc To exit Interval Memory Mode hold mode for 2 seconds Note that recovery periods as well as work period s are displayed in memory mode Interval Shortcut To quickly mark intervals simply push both buttons simultaneously from either trip or interval mode If in tip mode INT will briefly appear indicating you have marked an interval and which number interval you are on 14 Powertao Standard Computer Set Up wm bas but ton to select 12 or 24 hour clock Press mode but ton to save Press select button to select AM A or PM P Press mode button to save POWERTAP STANDARD COMPUTER SET UP Press select button to select the storage Press select button to Press select button select year month to change digits Press mode button and date rate 1 2 5 10 or Press mode button to 30seconds to advance advance Press mode button to Save Run Time Different storage rates yield different amounts of total storage time Refer to the chart on left to select the most appropriate storage rate Recording Settings seconds Max Recording Time hrs For quick exit and saving of all changed set up features in Setup 1 only hold both buttons Press select button to change digits Press mode button to
22. e 3B 4 Place Computer Place the computer into the mounting shoe on the handlebar Line up the slots on the base of the computer with the bracket Slide completely into computer mount see figure 4 6 Verify Installation Check all the components to make sure they are securely attached Spin the rear wheel and verify that the transmission icon on the com puter display is illuminated see fig ure 6 Adjust the receiver if neces LE sary Figure 4 Attaching of computer Figure6 Transmission icon in 8 upper left corner of display POWERTAP PRO RECEIVER INSTALLATON Powertap Pro Cadence Wire 7 Route cadence cable towards non drive side chain stay wrapping excess wire around frame 8 Mount cadence sensor using cable ties 9 Position magnet on crank arm so that it passes within 3 mm of the cadence sensor POWERTAP STANDARD COMPUTER GENERAL OPERATION General Operation of Computer The Powertap has three main displays power display top speed display middle and multi function display bottom There are two main modes of operation in the Powertap trip mode and interval mode Mode Button Left Press the mode button to scroll between the different displays The active display is indicated by small black triangles at the left and right side of the display Hold the mode button down for two sec onds to toggle between trip and interval modes The INT icon will illuminate when you enter interval mode Se
23. e to 1 5 This means the data downloaded to the Link accurately represents what was happening on your bike second by second How we repackage the data to make it useable does not affect or detract from its accuracy it s just making it more user friendly Some of the values on the ride chart don t make any sense don t remember going 170 miles per hour The scale on both the right side and the left side of the graph consolidates several measured values and therefore must share the common vertical axis So to avoid all power curves and extremely short speed curves the speed is shown as a multiple of 10 Sometimes interference can cause inflated values you can change these values in the CSV file by replacing the out of place number with a more realistic number such as that which precedes and follows the invalid number Tips on Installation Do not have any other applications running while doing the installation If there are lots of items in the system tray turn some off or disable for the installation process If there is a long pause during the installation do not do anything The program may be busy and a shutdown could cause a disruption There is benefit to uninstalling from the CD If the program has been installed or partially installed and the CD is put in and allowed to autorun it will detect the current installation and offer the choice to uninstall This uninstall does a much better job of uninstalling than manually
24. eed display Average Speed This function displays average speed in miles or kilometers per hour Average speed displays with MI or KM and the AV icon on the speed display POWERTAP STANDARD COMPUTER NAVIGATION Distance D 6 d Total trip or interval distance is 19 displayed in miles or kilometers from 0 00 to 999 99 The D icon is shown on the multifunction display Distance a 5 II displays in the same units as speed 3 Trip Time T 3 0 J The timer displays trip or interval time 13 to 9 59 59 The trip time auto starts and auto stops with rotation of the wheel Cadence C The rate of pedaling is shown from 40 to 140 RPM This is measured in the hub from your pedal stroke torque profile When cadence is below 40 or above 140 it is not displayed Average Cadence C AV Average cadence is measured in RPM Both the C and AV icons are illumi nated on the multifunction display when this mode is active Energy Expenditure E The total work done over the course of the trip or interval is shown in kilojoules This value is a measure of the total energy expended over the course of your ride Kilojoules can be converted to dietary calories using a 1 1 ratio Odometer O Total accumulated distance travelled since the last system reset is displayed in whole miles or kilome ters Note System resets if battery is removed Heart Rate i Current heart rate is shown up
25. erage and maximum power and speed distance trip time current and average cadence and heart rate total work and odometer Navigating the displays Trip mode uses the power speed and multifunction displays to show information The arrows at the side of each display denote which display is active The mode button left changes between the power speed and multifunction displays while the select button right selects functions within each display All three displays update approximately once per second AVERAGE CADENCE Clearing Trip Data To clear all trip information hold both buttons until cL is displayed then release To clear interval memory see page 9 Changing Between Trip and Intervals Mode Hold down the mode button for two seconds to enter interval mode The INT icon will illuminate and the first available interval number will be shown To return to trio mode hold the mode button for two seconds Figure 8 Trip mode display navigation HEART RATE 11 POWERTAP STANDARD COMPUTER NAVIGATION Current Power Instantaneous power output is dis played from O to 1999 watts in 1 watt increments The WATTS label is visible during this mode on the power display Maximum Power This value is the highest recorded power output since the last time this data was cleared Both the WATTS label and the MX icon denote maximum power Average Power This function displays the calculated
26. eries This will destroy oe hub and will void the wamamy e Figure 11 Computer battery replacement R sf Figure 12 Hub Battery replacement O Rings There are four user serviceable O Rings that protect the Powertap electronics from the ele ments One O Ring under each cover bolt and two O Rings under the hub cover Properly inspecting and caring for these O Rings will ensure years of trouble free use Follow the guidelines below 1 Verify that both O Rings are properly installed before installing the cover See illustrations on page 34 2 Inspect all O Rings every time you change the batteries in the hub Replace them if O Rings are torn cracked or excessively dry If necessary contact Graber Products for an O Ring replacement kit 3 Lubricate the large O Ring with synthetic grease to ease installation of the hub cover Technical Specifications Accuracy Signal Transmission Interval Data Storage Interval Display Operational Temperature Battery Life Hub Battery Life Computer Battery Type Hub Battery Type Computer 1 5 Digital RF unlimited 9 intervals 0 to 40 C 1 000 hours approx 100 hours approx N Type 1 5 volt ANSI 910 IEC LR1 CR2032 ANSI 5004LC Freehub fixing bolt torque 400 450 inch lbs Range of Measurement Power Torque Speed Distance Trip Time Cadence Total Energy Odometer Heart Rate 0 1999 watts 0 1999 inch lbs 2 59 mph 3 95 kph 0 00 00 99
27. essed for display on the computer Preparing for Installation The Powertap hub comes either in a pre built wheel or alone ready to build into a wheel The power measuring hub must be built into a complete wheel prior to installation Other items necessary for instal lation are a cassette spoke protector reflectors skewer rim strip tire and tube clincher rim or glue and tubular tire tubular rim Please read all instructions prior to installation Also take a moment to verify the package contents The installation procedure with a complete wheel requires only a trimmer to clip the cable ties However assembling the wheel cassette and other parts requires the proper tools and experience If you are unsure of any step of the pro cedure or do not have all of the tools necessary for instal lation contact your local dealer for assistance Package Contents Item Powertap hub or built wheel Powertap computer Receiver Heart rate chest strap Foam mounting tapes Cable ties Training With Power guide Product registration card Link Software CD Link cable Link Quickstart Guide a sch S sch CE N KS HS sch sch Compatibility The Powertap hub is compatible with Shimano 8 and 9 speed systems Campagnolo systems can be used with the Campy Adapter available at your Powertap dealer part 7024 Only insert the correctly M spaced Powertap hub into N your frame For example only use a 130mm spaced hub
28. ge Press mode button to save This function is useful for customizing how smooth the cadence display is for cadence based workouts 1 sec display updates approx every second 3 every 3 seconds etc Note These settings DO NOT affect the data that is stored for download e F mi E w Ki A a M d LE SEA MN AV i OO H Lk ir Press select button to set rate of display for heart rate rolling average reg regular averaging slo slow averaging fst fast averaging Press mode button to save This function can be useful for allowing for better pacing during Time Trial efforts by allowing for a slower update of the display Press select then mode to reset defaults press mode to save changes or go do it POWERTAP PRO COMPUTER SETUP 3 E m SN e geb H w a ne a Ne Lem C Be A fone C SN d dai aT ae bh N i Ve d WA V F A N feomemrar i li fr d n AV WATTS ij Wi L 1 N gi d i 1 4 I YES 1 4 i i d r OO i w Press select button to select YES or NO for zeros included in aver aging of watts Press mode button to save This is useful if you are curious what your avgerage power is when you are pedaling only OO al Press mode to select YES or NO for zeros included in averaging or speed This is useful if you are curious what your avgerage speed is when you are pedal ing only C av i Let Press select
29. gs s T Test Mode d me Setup modes 1 4 see following pages Note computer illustrations on the following pages display the factory default settings Die ra e oe E E a mm d sch Fi Pek Bree 4 2 To enter the set up main menu hold down both buttons until the main menu is displayed Main Menu 21 POWERTAP PRO COMPUTER SETUP 1 a aa NM lege A a a Ki wf Wi F Ki Be hy i ie Vi j a Ta Ae ah dai SN PaO SAL Vaa Zei Sa d deeewenragh NM d ener rar A V d dJrnpsrgrtap A K d SR owe a ree A a d d A d d d d E A p A din pi VP eg Vie gl Vi gl Press select button to Press select button to Press select button to Press select button to Press select button to select 12 or 24 hour select AM A or PM P change digits select year month select the storage clock Press mode button to Press mode button to and date rate 1 2 5 10 or Press mode button to save advance Press mode button to 30seconds save advance Press mode button to save Recording Settings Run Time Different storage rates yield seconds different amounts of total storage time Max Recording Refer to the chart on left to select the most Time hrs appropriate storage rate For quick exit and saving of all changed set up features in Setup 1 only hold both buttons 22 Press select button to change digits Press mode button to advance to next digit Refer to wheel circum ference guide for correct tire circ
30. ial cable is securely connected to both the COM port on your PC and the Powertap computer Notice that the Powertap computer should be awake LCD segments illumi nated before you attach the Powertap computer to the Link serial cable Notice that the screen goes blank as soon as you make a positive connection with the cable 38 TROUBLE SHOOTING Tips About Downloading original standard model only Be sure to CLEAR ALL C ALL on the display in the ride mode and the interval memory mode after you download your data or future rides may be lost To extend battery life after download 1 Remove the CPU from the Link download cradle immediately after the download is completed Leaving the CPU on the download cradle will contribute to excessive battery drain Important Just removing the CPU from the download cradle and allowing it to go into the blank LCD sleep mode does not return it to its normal power conserving mode and you must complete the next two steps 2 Place the CPU into the bike receiver shoe and wake it up by pressing either button 3 Turn the rear wheel enough to allow the CPU to receive a valid signal The rear wheel is only required to turn a few times and it is not necessary to ride the bike Important The CPU must receive a valid signal from the hub as indicated in the upper left hand corner of the LCD display Once you have completed all three steps noted above the CPU will be in its normal power conserving mode and c
31. ill can t find it it probably was not installed on your system during setup Go to start gt settings gt control panel gt add remove programs Select the windows setup tab In Communications select HyperTerminal You will need your Windows installation media Restart 1 Start HyperTerminal When the program starts you will be asked to enter a name Type in something you will remember like linktest Set the connect using pull down menu to Direct to COM 1 or your active COM port and hit OK Set the port settings to 9600 bps 8 data bits no parity 1 stop bit and no flow control Then select OK At the bottom of the window it should say connected 2 With the Powertap link cable connected to the serial port DB 9 9 pin connector in the back of your PC and no Powertap computer attached characters you type on the keyboard should be echoed back appear on the screen If not make sure you are using the correct serial COM port on the PC Note You must see the echoed characters appear on the screen This is a basic test that the serial connection is actually talking to the Powertap Link cradle 37 TROUBLE SHOOTING 3 Next insert the Powertap CPU into the download cradle When you attach the Power Tap computer to the download link cradle its display must go blank If it does not make sure the Powertap computer is fully seated to the cradle 4 Type a capital R and you should get something like RR 0000 3D 10 84 OF 01 5D This confirms
32. in setup mode Transmission icon flashes rapidly Hub batteries need replacement replace the hub batteries as shown on pages 33 of the User Manual 34 TROUBLE SHOOTING Link Software General Link Trouble Shooting The following are some problems you might have when installing and setting up your Link Software This list will be evolving so please visit our web site for a current troubleshooting guide http www cycle ops com If your problem is not addressed here you can call Customer Service at 1 800 783 7257 Raw Data Files Some of the more sneaky of you will try calculating power heart rate for just one ride to see how cardiac fatigue might be affecting your ride You ll do this by running the CSV file in Excel and cal culating the factor for each record Then you ll replace the calculated column for the existing say Torque column This is very naughty You need to know that as soon as you import that data into your database it will affect your entire database history until you delete the ride If you want to try such experiments it s best to import such adulterated data into a separate rider name Database Management As long as you are keeping all the raw data CSV files you can always start over by importing the files again Remember that you can always delete a ride and rider from the database to start over Data Differences Between Link and Powertap Computer There are two issues here data inconsistency and time differences
33. laced if necessary whenever the battery cover is removed Be careful not to pinch the seals when replacing the cover Use a light coating of grease when reinstalling the battery cap on the O rings See Pro section for O ring replacement 6 The Powertap wheel does not include a quick release skewer CycleOps recommends using a steel skewer 7 Both sides of the Powertap hub should be built with at least a two cross spoke lacing pattern Because of the PowerTap design torque is trans ferred to the non drive side as well as the drive side 8 Electromagnetic interference such as interfer ence caused by high power lines may briefly dis rupt the communication between the hub chest strap and computer 9 The Powertap is available only ina 130 amp 135mm range of axle lengths to accommodate different frames and uses Only use similarly sized frames and hubs Failure to adhere to these precautions may cause prema ture failure or incorrect operation of the unit and may void the warranty SYSTEM OVERVIEW The Powertap System The Powertap system includes a power measuring hub which measures torque and wheel speed This information is then transmitted via digital radio fre quency to a receiver mounted on the seat stay The data is wired to the Powertap computer mounted on the handlebar The computer receives the signal from the heart rate monitor chest strap to provide heart rate information All of this information is then proc
34. lect Button Right Press the select button to select which function is shown on the current display The current function will remain on the display even when the mode but ton is used to move to another display The select button also starts stops and indexes intervals in interval mode 10 Menu Both Buttons To enter the set up main menu hold down both buttons until the main menu is displayed ie Press select to choose the desired set we a up and press mode to begin set up H A EIABRLARN A A E exit retum to ride mode d restore default settings T Test Mode LC Oj e Main Menu Power Conservation The computer and hub have power saving features to prolong battery life The computer powers down the display after 4 minutes of inactivity Press one of the buttons to activate the display Similarly the hub powers down after two minutes of inactivity The transmission icon will not be visible when the hub is Set A i i INTERVAL DISPLAY asleep Spin the wheel momentarily and the icon will illuminate POWER DISPLAY E SPEED DISPLAY MODE LEFT henges active e SELECT RIGHT Select function Starts stops index intervals Figure 7 Powertap button and display summary Clear data Enter setup SPEED DISPLAY POWER DISPLAY MULTI DISPLAY POWERTAP STANDARD COMPUTER NAVIGATION Trip Mode Powertap trip mode displays and records trip data for current av
35. leted and it passes it says yes If the test should fail the bottom line will say no 32 TROUBLE SHOOTING The following are some problems you might have when installing and setting up your Powertap system This list will be evolving so please visit our web site for a current troubleshooting guide http www cycle ops com If your problem is not addressed here you can call Customer Service at 1 800 783 7257 Cadence shows zero or dashes The Powertap cadence sensor is accurate between 40 rom and 130 rom Anything outside of this range will be recorded as a zero Since the cadence measurement is a virtual cadence based on torque measurements and not measured with an extra sensor it cannot read values outside of this range Sometimes heart rate shows zero or dashes Typically this will happen if the chest strap contacts lose sufficient contact with the skin or if the battery in the Powertap computer is low Heart Rate data seems incorrect No chest strap in use if you are not using the Powertap chest strap the receiver may pick up noise No hub transmission the transmission icon must be illuminated for the heart rate monitor functionality to be enabled Spin the wheel momentarily to wake up the hub Computer batteries low replace the computer batteries as shown on pages 14 15 of the User Manual Low battery in chest strap replace chest strap batteries Chest Strap not on properly see page 8 or
36. llation tip list If not it still may be beneficial to uninstall the soft ware with the uninstall program on the CD and then re install Is the link on the same COM port that the software is set for The default is COM 1 If not set to the same COM port Is there PDA hot sync software running If there is disable hot sync software Are other programs or applications running Does it work on another computer If the Link software installs and you can successfully download data on another computer you will need to determine what is interfering by walking through all of the above items Does it work with HyperTerminal See Tips on Testing Serial Ports and Powertap Hardware with HyperTerminal The Powertap computer may have fallen asleep while connected to the serial cable Try pressing one of the Powertap buttons either MODE or SELECT to wake it up Notice however that by pressing one of the buttons you will not see the display illuminate while the Poweryap computer is connected to the cable there will not be a feedback indicating that the computer woke up 40 TROUBLE SHOOTING Make sure you have data in the Powertap computer Try to clear all press MODE and SELECT buttons until you see C ALL on the lower part of the display then either go for a ride or spin the wheel long enough that you know you should have collected data about 30 seconds should do you ll Know this if you have the transmission icon illuminated
37. ly POWERTAP PRO COMPUTER SETUP 4 Pwr oa The Powertap Pro allows you to use the unit as a cycle com puter or heart rate monitor only Fig 8 illustrates the Power Meter Mode Press mode to leave in this setting Push select to change to cycle computer mode wel Wa De bk L S Oderen Figure 9 illustrates cycle computer only mode This mode requires a wheel magnet on a non Powertap rear wheel Align the magnet towards the bottom edge of the receiver so that it passes within 3mm of the receiver a Deg zm w MK QE OO 4 Fig 10 Push select until dis play looks like fig 10 for heart rate only function When this is in use all that will be displayed is current heart rate average heart rate trip time and time of day Press select to choose autostart control by speed fig 11 This will allow trip time to count whenever wheel speed is registering If speed is not register ing trip time will stop after 3 seconds Press select to choose autostart control by heart rate fig 12 This will allow trip time to count as long as heart rate is regis tered This function is useful for transitioning from cycling to running and vice versa Ye Ge E ffl PRO A g watts l4 H go d i LG D Oo O0 Press mode button to save do it press select button then mode to reset defaults 27 MAINTENANCE amp SPECIFICATIONS The Powertap uses a
38. ne display shows crank cadence sensor RPM The middle line flashes 88 with each pulse from cadence sensor The bottom display shows cadence RPM value from the hub 6 Torque information Note the T icon is displayed This displays information about the internal workings of the torque readings The bottom display is the offset torque value directly sent by the hub torque with no cor rection applied The hub sends a value of approximately 512 as the zero point The middle line display is the correction offset value currently stored in the CPU This is the value that is changed when you do a manual Zeroing of the torque The top display is the corrected actual torque the bottom value minus the middle value 7 Standard test file This mode writes a small test file to the memory Press the Select button and the bottom lines says run and then yes when the file is written This file can then be downloaded 8 Communication loop back test When looking at the frontside of the CPU use a coin or paper clip to short out the two pins on the left side Then press the Select button The bottom line will say run and then yes if it passes the test correctly If the pins are not shorted together or there was a problem the display will say no This test can be repeated by press ing the Select button 9 Fast Memory test This does a quick test of the memory in the CPU Press Select and it displays run on the bottom line When the test is comp
39. olved via one of these channels with a minimum of downtime Web site htto www power tap com E Mail custsrv graberproducts com Phone 1 800 783 7257 Fax 608 274 1702 Warranty Graber Products warrants its Powertap products against defects in manufacturing and workmanship for a period of one year beginning at the date of purchase or from the date of manufacture in the absence of a proof of purchase In the event of a warranty issue Graber will repair or replace the item 42 at its discretion Graber Products is not responsible for any indirect or consequential costs or damages associated with the warranty of the product Our products are not covered under warranty in cases exhibiting signs of abuse improper maintenance or installation crash using the product with non compatible components or using the product for purposes for which it was not designed This warranty is also void if the product has been modified from its original form including changes in aesthetics serial numbers or logos Graber is not responsible for basic hub maintenance such as re packing bearings and bearing adjustments Warranty Procedures If it appears that a Powertap component is not work ing properly please take the time to inspect and troubleshoot the system as best as possible In many instances solutions may be as simple as replacing a bearing or adjusting a sensor Often small parts can repaired at the shop instead of the longer and
40. ou for purchasing the CycleOps Powertap or Powertap Pro Until now instruments for measuring power have been expensive inaccurate and difficult to use We designed the CycleOps Powertap and Powertap Pro to be extremely accurate reliable affordable and easy to use and install Power is the ultimate performance yardstick for cyclists who want to measure intensity No other piece of cycling equipment will give you a greater retum on your investment PRECAUTIONS IMPORTANT 1 Before beginning any training program always check with your physician 2 Keep your eyes on the road Do not become over ly engaged with the Powertap display We recom mend familiarizing yourself with computer functions while stationary 3 The computer receiver and hub are water resistant However avoid extended submersion or high pressure sprays directed at Powertap components 4 Wash off dirt with a mild detergent on a soft cloth Wipe excess water off with a dry cloth Do not appl kerosene paint thinner alcohol benzine or other suc solvents to any Powertap components 5 The plastic cover on the hub should be removed only when replacing batteries or when allowing the unit to dry after submersion in water Only turn screws 7 times maximum when reinstalling the battery cap Hub battery life is approximately 3 months of use Repeated disassembly may compromise the effective ness of the O ring seals O rings should be inspected and rep
41. our current speed is displayed in miles per hour or kilometers per hour up to 99 9 mi hr or km hr in 0 1 mi hr or km hr increments Only MIT or KM is shown with current speed Maximum Speed This function displays the highest recorded value of the speed The maximum speed is shown with MI or MM and the MAT icon on the speed display Average Speed This function displays average speed in miles or kilometers per hour Average speed displays with MI or KM and the AV icon on the speed display POWERTAP PRO COMPUTER NAVIGATION Distance D Total trio or interval distance is displayed in miles or kilometers from 0 00 to 999 99 The D icon is shown on the multifunction display Distance 5 d H ID displays in the same units as speed Trip Time amp Time of Day T 3 6 d The timer displays trip or interval time gt fto 9 59 59 The trip time auto starts and auto stops with rotation of the wheel Time of Day y 5 14 3 The real time clock may be accessed by holding select for two seconds To return to trip or interval time hold down select for 2 seconds Cadence C The rate of pedaling is shown from 20 to 240 RPM For quick access to the cycle computer function hold down select for two seconds while diplaying current cadence Average Cadence C AV The average of the cadence is measured in RPM Both the C and AV icons are illuminated on the mul tifunction display when this mode is active
42. that the download link cradle cable the Powertap CPU and your COM port are functioning properly Sometimes the command you send needs to be repeated to get a response This is normal 5 If you only get 0000 and nothing else following it there is a problem with the Powertap computer 6 If you get 0000 FF FF FF FF FF FF or 0000 00 00 00 00 00 00 again there is a problem with the Powertap computer 7 Type a capital D and you should get a long string of letters symbols and numbers This is the downloaded data from the Powertap computer that is unreadable in HyperTerminal If you don t get this on your screen the CPU is unable to download If after reviewing this section you still have trouble please give us a call at 800 783 7257 Ext 159 Testing PRO model with HyperTerminal The process is the same as with the original standard except the command to send is V The PRO will respond with XX XX PRO XX YY ZZ XXXX This is the firmware version and serial number information Serial Port Trouble Shooting Check to make sure your COM port setting see Options gt Application Setup corresponds with the physical COM port on your PC Check to make sure the COM port is not configured for another application Personal Digital Assistant PDA software or other device applications may be occupying the port at start up You may have to exit the occupying software to release the COM port for the Link software Make sure the Link ser
43. umfer ence A roll out meas urement mm of the rear wheel will give greatest accuracy Press select button to select English or Metric units Press mode button to save ep F d i ee ge k a d Vi d dP REAR NV k h k Press select button to select starting Odometer reading Press mode button to save Note Odometer settings are saved during battery changes POWERTAP PRO COMPUTER SETUP 1 Tire Size 24 x1 26 x1 26 x1 25 26 x1 5 26 x 2 0 26 x 2 125 27 x1 27 x11 8 Wheel Circumferences Circ mm 1753 1913 1953 1986 2055 2070 2125 2139 Tire Size 27 x1 1 4 700C tubular 700 x 20C 700 x 23C 700 x 25C 700 x 28C 700 x 32C 700 x 38C Circ mm 2152 2094 2084 2096 2108 2116 2136 2170 23 POWERTAP PRO COMPUTER SETUP 2 24 VE Of OO Press select button to set rate of display for watts rolling average Press mode button to save This function can be useful for allowing for better pacing during Time Trial efforts by allowing for a slower update of the display d T ez a iia fa Fa Ma w d Pe te reit Dress Dese open to set rate of display for speed rolling average Press mode button to save This function can be useful for allowing for better pacing during Time Trial efforts by allowing for a slower update of the display ha eeh d TEANA L vi Press select button to set rate of display for cadence rolling avera
44. y mounted in handlebar mount Communication errors verify that the receiver is positioned as shown in the installation section Inspect receiver amp computer mount for damaged wire or connector Moisture in hub remove cover to see if there is any condensation on the battery cover If there is leave cover off in a dry place for 12 hours or until moisture disappears Interference with other devices make sure you are not setting up the Powertap inside a building with a lot of electrical noise neon signs motors or near power lines Take the Powertap outside or away from the electrical disturbance to see if signal returns Powertap computer s batteries are low replace batteries as shown on pages 33 of the User Manual We recommend using a cone wrench to remove the battery cap not a coin Check the Powertap Receiver wire and computer mount for damage Displayed data blinks or does not function Batteries need replacement replace the computer batteries as shown on pages 33 of the User Manual Computer not seated in mount make sure computer is firmly and correctly mounted in handlebar mount Interference with other devices see note above about interference Check for damage to receiver amp computer mount Power seems incorrect Torque value is not zeroed zero the torque as described on page 12 of the User Manual Speed seems incorrect Wheel size incorrect refer to the chart on page 14 and enter the correct size
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